Hard one to explain - I have a Plus.net router connected to LAN4/WAN of the router. I had previously ran the wizard and configured to use this port for the internet, but had moved my equipment and now the router 'thinks' it disconnected from the internet despite all my devices being able to connect to the internet fine with the router. Below is a screen grap of the WAN & LAN setting summary & a seperate screenshot of a speed test showing I have a valid internet connection. I've tested both devices using ethernet & Wi-Fi, none have issues connecting.
The reason this is a problem is it means TP-Link Cloud doesn't work, nor does chacking/updating the router's firmware via the dashboard. If I can avoid it, I'd prefer not doing a reset of my settings.